Truck



Aug. 18, 1936. A. H. oELKERs'ET Al.

TRUCK Filed Sept. 8, 1931 3 Sheets-Sheet l' Aug. 18, 1936. A. H. ol-:LKERS ET AL.

TRUCK Filed Sept. 8, 1951 3 Sheets-Sheet 2 infill/Idil Aug. 18, 1936. A. H. oELKx-:Rs ET AL 2,051,648

TRUCK Filed Sept. 8, 1951v 5 Sheets-Sheet 3 APatented Aug. v18, 1936 UNITED STATES *PATENT Aor-'Frclr TRUCK Chicago. and William C. Hedgmi, wnmeuefm., mignon to American steel Foundries, Chicago, Jersey Ill., a corporation of New Appueaubn september s, 1931, sesamo. ses-1,519

15 chime. (ctms-192) in a car truck construction of the rocker members suitably in an arrangement wherein the riding qualibottom web for supporting rocker. seats, and/side walls which provide pockets lifoireception o1' lo providinga strong construction, but also providing a means whereby adjustment may bel readily made to the rocker elements.. The further advantage of adiustability results because of the tact that shimsor other L5 posed between the removable rocker seats and the bottom web of these supporting members of the transom, whereby the rocker elements may be adjusted relative to the bolster.

'nie invention still further contemplates the o idea.` o1' providing these rocker elements, as likewise the .bolster and rocker` seais associated therewith with cogs, lugs or projecting elements, these elements of each of these members being 5 adapted to be received by a cooperating partv for contemplates the idea of mountthe rocker seats. This arrangement has its advantage in not only means may be interinterlbcking engagement to properly msition the rckers. A l

With these and various other objects in ,view. the invention a'y consist of certain novel ieatures of cons uction and operation, as will be- 5 more fully described and particularly pointed out vin the specification, drawings and claims ap- In the drawings. which illustrate an embodiment of the device and wherein like reference 1 0 characters are used todesignate like parts--` Flgurel is a fragmentary top-plan view of'a car construction made in accordance with the Y present invention;

Figure 2 is a side elevation partly in section of 1li a truck construction embodyingl the invention. A the section being taken substantially in the plane longitudinally oi' the center line o1' the truck;

Figure 3 is an end elevation partly in section Y of the truck construction shown in Figures l and 20 2, the section being .taken substantially in-the plane of the transverse center line ci the truck; Figure 4 is a top plan view oi a rocker member made in accordance with the invention; Figure 5 is a viewin cross section taken in plane represented by line 5-5 of Figure 4 of drawings;

Figure 6 is a view in cross section taken in a plane represented by lfne 6 6 of Figure 4 of the drawings; i 30 Figure 7 is a top plan-view of a rocker seat' member made in accordance with the present in vention;

e Figure-8 is a view in end elevation o f the rocker seat membershown in and Figure 9 is a view'in cross section taken ina plane represented by line 9-0 of Figure 7 of the drawings. y

Referring now more in detail to the drawings. A a car truck construction made in accordance with` the prese invention is shown as' comprising spaced wheel and axle assemblies 2 and 4, each of which is provided with journal boxes i adapted f to support side members I spanning therebe- 45 tween. Eachoi' these side frame members is oi substantially U shaped construction and comprises a lower elongated portion Il and upwardly inclined end portions I2 terminating in journal box seat portions Il engaging with-or seating upon the journal boxes l of the wheel and axle assemblies. Adjacent each of the seating portions II is provided a recessed portion adapted to provide a spring seat i'orlthe end of a leaf spring assembly Il, while the lower portion il is.

Figure 'lotjthe drawings. 35 'V formed toprovide spring seats 20 and 22 providing supports in spaced relation for coil spring assemblies 24 and 26. The ends of the leaf spring engaging the spring seats are preferably of arcuate construction whereby deflection due to loading or operation decreases the effective spring length. Each of these coil spring assemblies 24 and 26 comprises an inner and outer coil spring 28l and 30 adapted to have seating relation with the side frame member 8 and also with a spring seat 32 upon which the leaf spring assembly i8 is adapted to be supported adjacent its central portion. V

Spanning between the side frames ported upon the leaf spring assemblies is a transverse member or transom 34.

and sup- I8 thereof This transom 34 is formed with spaced side portions 36 and 38 provided at their ends with jaws 40 adapted to fit over and engage or embrace portions of the'leaf spring assemblies I8, these jaws 48 being interconnected by a transverse member 42. The side portions 36 and 38 are of box-like construction in cross-section and are further connected together adjacent their ends by means of transverse members 44 providing a support for rockers 46 for movably mounting a bolster 48 therebetween for lateral movement relative thereto, this bolster48 being provided with a center ybearing 50 adapted to cooperate with a support of a car bodv:

The rocker supporting members 44 are preferably formed integral with the side portions 36 and 38 of the transom and are substantially channel-shaped in cross section, the same being formed with a bottom web 52 to provide` a support for 'a rocker seat 54, and side anges or walls 56 and 58 to provide a pocket for the reception of the rocker 46 which is carried upon the rocker seat 54.

The rockers 46 are formed with curved bearing surfaces 60 adapted to have cooperativeseating relation with similar curved accordance with the disclosure in a co-pending application Serial No. 552,152, led July 21, 1931, the contour of these bearing surfaces being such that lines drawn through the points of rocking contact converge upwardly in all positions of lateral motion of the bolster transom 34 whereby the bolster This causes a certain resistance to too free lateral motion whereby a bolster is normally kept in va central position but permits lateral motion to take place when the lateral forces are suilicient, lateral movement being limited by the stops 49 provided on the transo Referring more particularly to Figures 4 to 6 inclusive, these bearing surfaces 60 are shown asv being provided 'on the seating portions 62v and 64 of the rocker. These portions 62 are formed integral with a connecting web 66 and a transverse reinforcing web 68. On each side ofthe portions 62 and 64 and between the bearing suris self centering.

' cogs 10 and 12 on either side of which are the pockets or recesses 14.

The bearing surfaces 60 of one of the portions 62 are adapted to have cooperative relation with similar curved bearing surfaces 63 providedon the ends of the bolster 48 and the cogs or pro- .jections 10 and 12 are adapted to protrude into or be received in openings 16 provided in the bolster and on either side of which are cogs or projections 18 adapted to be received in the recesses 1 4 of the rocker.

Similarly, the bearing surfaces 60 on the oppo-v 'on the bolster bearing vsurfaces in 48 relative to the` opening therein adjacent the site portion 62 are adapted to have cooperative bearing relation with bearing surfaces of the rocker seat member 54, the rocker seat member being further formed with openings 82 between these bearing portions for reception of the cogs or projections 10 and 12 of the rocker, and on either side of which are the cogs or proj 84 -adapted to be received in the recesses 14 thereof.

It will be apparent that the cogs or projections provided on the rocker members 46 and interengaging with the cogs or projections provided 48 and rocker seats 54 'provide an effective means for properly positioning the rockers and to prevent undesired displacement of the same from their proper seating relation with their associated parts. Further, the side walls or flanges 56 and 58 of the supporting members 44 further provide a pocket for the reception of the rocker seats 54, as likewise a strong transom 'construction. This particular arrangement further includes the distinct advantage of means for adjusting the rockers 46, should the same be necessary because of wear. In this respect, shims or other similar members of suitable thickness may bereadily inserted between the rocker seats 54 and the web 52 of the supporting members 44 for adjusting the rocker seats 54 with the rockers 46, whereby the rockers have proper seating engagement with the bolster 4ii.l

It is to be understood that we do not wish to be limited by the exact embodiment of the device shown, which is merely by way of illustration and not limitation, as various and other forms of the device will of course be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

1. A bolster for a car tension and compression members, said tension providing truck, comprising spaced y vided'with an opening, and an element projecting therefrom adapted to interlock with an associated rocker.

2. A bolster for a car truck, comprising spaced tension and compression members, said tension member having a curved rocker seat, said seat being provided with an opening, and an element projecting therefrom adapted to interlock with an associated rocker.

3. A reversible rocker for support of a car truck member, comprising a plurality of similar bearing portions provided with recessed portions.

4. A reversible rocker for support of a car truck member, comprising a plurality of similar bearing surfaces having a recessed portion, and an element projecting from each of said surfaces.

5. A reversible rocker for support of a car truck member, comprising a plurality of similar curved bearing surfaces having recessed portions, and elements projecting from each of said surfaces.

'A rocker seat member comprising a curved rocker supporting surface, spaced rows of elements projecting therefrom, adapted to interlock with an associated rocker, said member having an base of said elements for receiving another element to interlock said member therewith.

'7. A rocker seat member .comprising a curved rocker supporting surface, and spaced rows of elements projecting from said surface adapted to interlock with an associated rocker, said member having openings therein adjacent the base of said elements for receiving other projecting eiements to interlock said member therewith.

8. In a transom, members, end connecting members integral therewith, and upwardly extending end portions terminating in downwardly extending jaws forming spaced seats for a common spring, said spaced members being provided with a track for accommodating a rocker.

9. In a transom, the combination of spaced members, end connecting members integral therewith, and upwardly extending end portions terminating in downwardly extending jaws forming spaced seats for a vcommon spring, said spaced members being provided adjacent the end portions with a rocker track.

10. In a1 transom, the combination of spaced members, end connecting members integral therewith, and upwardiyextending end portions terminating in downwardly extending jaws forming spaced seats for a common spring, said spaced members being provided with a connecting channel portion for accommodating a rocker track.

l1. In a transom. the combination of spaced members, end connecting members integral therewith, and upwardly extending end portions terminating in downwardly extending jaws forming spaced seatsvfor a common spring, said spaced members being provided with a connecting inwardly facing channel portion for accommodating a rocker track. p

12. In a car truck, the combination of spaced wheel and axle assemblies, side frames supported thereon, each of said side frames including a. leaf spring, a transom disposed between said .leaf springs, said transom including spaced members,

I -end connecting members integral therewith, and

upwardly extending end portions terminating in downwardly extending jaws embracing said leaf .springs and forming spaced seats for supporting leaf springs, said spaced said transom on said members being provided with tracks' for accommodating rockers, rockers on said tracks, and a bolster supported on said rockers.

wheel and axle thereon, each of said side frames including a leaf spring. a transom disposed" between said leaf the combination of spaced 13. In a car. truck, thewcombination of Vspaced assemblies, 'side frames supported springs, said transom-'including spaced members, end connecting members integraltherewith. and. upwardly extending end Y Y I downwardly extending jawsvembracing said leaf springs and formingspaced seats for supporting said transom on said leaf springs,A said spaced members being provided adjacent the end portions with a rocker track, rockers on saidl tracks, and a bolster supported on said rockers.

14. In acar truck, the combination of spaced wheel and axle assem lies, side frames supported thereon, each of said side frames including a leaf spring, a transom disposed between said leaf springs, said transom including spaced members. end connecting members integral therewith, and upwardly extending end portions terminating in downwardly extending jaws embracing saidvleaf springs and forming spaced seats'for supporting portions terminating in said transom on said leaf springs, said spaced members being provided with connecting channel portions for accommodating rockers, rockers on said portions, and a bolster supported 'on said rockers.

15. In a car truck, the combination of spaced wheel and axle assemblies, side frames supported thereon, each of said side frames including a leaf spring, a transom disposed between said leaf springs, said transom including spaced members,

ALFRED H. OELKERS. WILLIAM C. HEDGCOCK. 

